Itchy bumps on the body when it rains, and cold urticaria, mainly because of the cold stimulation, so that blood vessels dilation triggered edema, air masses, etc., can be treated by oral medication, topical medication, daily care and other ways to treat. 1. Oral medication: When it rains, the rain is cold, which can trigger cold urticaria after stimulating the skin. Patients can cooperate with doctors to take antihistamines, such as cetirizine, diclofenac tadalafil, etc. These drugs can reduce vascular exudation, thus relieving the condition. 2. Local medication: If the patient’s local itching symptoms are more serious, you can cooperate with the doctor to apply local glycerine lotion, hydrocortisone butyrate cream and other medications, which can play a role in relieving the effect of itching. 3. Daily care: patients should avoid local skin irritation to avoid aggravation. In the cold season when going out should wear gloves, hats, which can protect the exposed skin. When the above symptoms occur, it is recommended to consult a doctor in a timely manner, under the guidance of a doctor to standardize the treatment, the drug should be used in accordance with the doctor’s instructions, do not self-medication.